PROBLEM TO BE SOLVED: To provide a mouse having characteristics of exhibiting visceral fat obesity in an early stage and coincidence of diabetes and hyperlipemia, genetically establishing the character and expressing recessive heredity.SOLUTION: The mouse is a daruma mouse derived from an ICR mouse, spontaneously developing the obesity and expressing autosomal recessive heredity in relation to the character for spontaneously developing the obesity. In the mouse, only a homozygote grows fat.COPYRIGHT: (C)2008,JPO&INPIT【課題】早期の内臓脂肪型肥満症の発現、糖尿病及び高脂血症の併発という特性を有し、該形質が遺伝的に確立され、劣性遺伝するマウスの提供。【解決手段】肥満症を自然発症するマウスであり、肥満症を自然発症するという形質に関して常染色体劣性遺伝を示し、ホモ接合体のみ肥満となるICRマウス由来のdarumaマウス。【選択図】なし